Mitsubishi PAC-SJ96MA-E User manual

2
No. Description Figure Q'ty No. Description Figure Q'ty
1
M-NET board
(with insulation
sheets and
supports)
17Lead wire
(5 wires) 1
2
Plate
(For mounting
M-NET board)
18Lead wire
(3 wires) 1
3Screw (M4×8) 29Lead wire
(2 wires) 1
4Terminal block
(M-NET) 10
Ground wire
and screw
(M4×8)
1
each
5Terminal screw
(M3×20) 11Fastener 2
6Label 1
length: 300mm (12 inch)
length: 280mm (11 inch)
length: 280mm (11 inch)
PAC-SJ96MA-E
INSTALLATION MANUAL FOR A-M CONVERTER
BH79N063H04
1
3 4
1.Parts List 2. Switch setting
SAFETY PRECAUTIONS
After installation, make test operation and confirm that it works properly, and explain the safety precautions, operation method, and
maintenance to your customers.
Tell your customers to keep this installation manual together with operation manual with them, and when they give or sell this machine to other
person put this installation manual and operation manual with it.
Before starting installation, read the "Safety Precautions" described below.
The following precautions must be observed as it describes the serious matters for safety.
The safety precautions are described with the degree of danger.
WARNING
WARNING
CAUTION
When you handle wrong, it can lead to death or serious injury.
When you handle wrong, it can lead to injury or damage to building and furniture.
The installation must be done by dealer or qualified person.
If the customers do the installation by themselves and it is not
perfectly installed it can cause water leak, electric shock, or fire.
The installation must be done in accordance with this manual.
If the installation is not perfectly done, it can cause water leak,
electric shock, or fire.
Turn the power on 12 hours or more before operation.
If you start operation as soon as the power on, it can cause failure.
Never turn the power off during season.
Never operate the machine without panel or guard off.
It can cause serious injury being caught by rotating part or burn or
electric shock by high voltage part.
Never operate the machine without air filter off.
It can cause failure by dust.
Never operate the switches with your hand wet.
It can cause electric shock.
Never touch refrigerant pipes while the machine running.
The refrigerant pipes becomes high and low temperature while the
machine running. If you touch the pipes by hand, it can cause
chilblain or burn.
Never turn the power off as soon as the machine stops.
Wait for 5 minutes or more. It can cause water leak or failure.
Install a circuit breaker depending upon the location.
Without a circuit breaker, it can cause electric shock.
Use standard wires which meet current capacity.
Otherwise, it can cause short-circuit, heat, or fire.
Put ground wire.
Never ground to gas pipe, water pipe, lightning conductor, or
telephone ground wire.
Faulty ground can cause electric shock.
Wires must not have tension.
It can cause snipping, heat, or fire.
Never try any modification.
For repair, ask your dealer.
If the machine is not modified or repaired completely, it can cause
water leak, electric shock, or fire.
The wiring must be securely done by using proper cable. The wires
should be connected to the terminals not to have external force of
the cable.
Faulty connections can cause heat or fire.
The terminal cover (panel) of the unit must be installed securely.
Faulty installation can cause fire or electric shock by dust or water.
The electric installation must be done by qualified person in
accordance with this installation manual. Use the separate circuit
only for this machine and use rated voltage and circuit breaker.
If the electric circuit power is not sufficient or the wiring is not
properly done, it can cause electric shock or fire.
Never move or reinstall the machine by the customers.
If the installation is not perfectly done, it can cause water leak,
electric shock, or fire. Ask your dealer or qualified person.
Before electric wiring
CAUTION
Before test operation
CAUTION
For models in which this component is used, see the separate sheet.
Centralized
controller
L1 L2
L3
Power supply
unit
M-NET transmission line
(Centralized control line)
M-NET transmission line
(Indoor control line)
A transmission line
MA remote controller line
Maximum power feeding length for
the centralized control line:
L1 [200 m (656 ft)
L2 + L3 [200 m (656 ft)
Indoor unit Indoor unit Indoor unit Indoor unit
ME
controller
MA
controller
M-NET
Outdoor
unit
Mr. SLIM
Outdoor
unit
M-NET
Adapter
Indoor unit
Bad example (Multiple ground of shielded wire)
(1) Ground wire connection
(2) Length of M-NET transmission line
Centralized
controller
Power
supply unit
Power
supply unit
Power
supply unit
Outdoor
unit (*1)
Outdoor
unit (*1)
M-NET transmit wire NO NO NO
Centralized
controller
Outdoor
unit (*1)
Outdoor
unit (*1)
M-NET transmit wire OK
Centralized
controller
Outdoor
unit (*1)
Outdoor
unit (*1)
M-NET transmit wire OK (*2)
Good example (One spot ground of shielded wire)
Good example (One spot ground of shielded wire)
(*1) Refer to the appendix List of Models to check the applicable models.
Note: If the shield and earth are grounded in two or more locations, electrical circuit is generated through them, and a
potential difference is created because of the impedance difference between or among the ground locations.
This may cause noise in the shield. Ground at only one point, then no circuit is created and no noise gets in.
(*2)
Attention for M-NET connection
Pay attention to the next points for wiring of shielded wires.
CAUTION
The shielded wires of M-NET transmission should be
connected with the ground wire at any only one place
of the unit to be connected.
,WFDQFDXVHWKHWUDQVPLVVLRQHUURUGXHWRQRLVH
Outdoor unit digital LED display reads "Ed" "A7" error.
Centralized controller reads “0403” “6607” error.
CAUTION
The shielded wires of M-NET transmission should be
used below the maximum line length.
,WFDQFDXVHWKHWUDQVPLVVLRQHUURU
Outdoor unit digital LED display reads "Ed" "A7" error.
Centralized controller reads "0403" "6607" error.
M-NET
terminal block
Ground wire
(accessory)
Transmit
wire Shielded
wire
(1) M-NET address setting
The setting should be done by rotary switches SW11 and SW12 on M-NET board. (Factory settings are all Zero)
Make sure to set M-NET address within the range of 01 to 50.
When installing two or more outdoor units, do not use the same number more than once for M-NET address.
(2) Switch 1-8 setting
M-NET address No.
Switch
setting
SW 11
(Ones digit)
SW 12
(Tens digit)
12 50
Function details Initial
setting
Effective
timing
SW1-8
Selection Function
Turn the switch ON when MA remote controller or wireless
remote controller is connected to indoor unit.
Turn the switch OFF when MA remote controller or wireless
remote controller is NOT connected to indoor unit.
Note: SW1í3 is always ON
M-NET board
SW1-8 ON
Outdoor
unit
M-NET board
SW1-8 OFF
Outdoor
unit
Indoor
unit
RC
OR
MA
MA: MA remote controller
RC: Wireless remote controller
Indoor
unit
Centralized
controller
Centralized
controller
<FUNCTION>
Set the connection of MA-
remote controller or
wireless remote controller
to the indoor unit.
ON : exist (initial setting)
OFF : not exist
<NOTE>
In case of switch is ON,
transmission error between
M-NET board and
centralized controllers does
not be detected, and
M-NET board operates
continuously.
ON
When
power
supply
ON
SW12
SW11
SW1
M-NET board
Before installation
Set switch on M-NET board in advance before installing on the electrical parts box.
<Example>
(*2) In case that the outdoor unit is grounded, connect the ground wire supplied as accessory to the S terminal (secondary)
of M-NET terminal block and M-NET ground terminal inside of electrical parts box with using screws supplied.
(3) Using dual set point
1. To activate dual set point, make sure that all units and controllers in one group have dual set point function.
2. To change the temperature display setting of existing group from single to dual set point, make sure to restart the
whole system related.
3. When ME remote controller is included in same group in the case of 2, make sure to initialize* ME remote controller
before use.
(*Refer to the ME remote controller installation manual. <Service Menu.>)

3. Installation procedure
5 6
Connect the M-NET transmission line (shielded cable)
arranged in step to the terminal block 4assembled in
steps to .
There is no polarity.
Note: Connect the M-NET transmission line firmly,
making sure that the screws on terminal block are
not loose.
Set the address with rotary switches (SW11, SW12) on
M-NET board 1by referring to “(1) M-NET address
setting” on page 4; then install M-NET board 1on the
plate 2in the direction shown in the figure.
CNVMNT
SW12 SW11
Positioning hole on
the terminal block 4
CN2M
CND
Clamp
(*1)
(*2)
Screw
Screw
Screw
M-NET transmission
line (shielded cable)
Terminal block
window of the
outdoor unit
Cable bush
M-NET transmission
line (shielded cable)
2 catches
notch
notch
CNMNT
(View from the side with terminal block of electrical parts box)
CN5
(View from the terminal block side)
(View from the top of outdoor Board)
[Drawing of installation to the outdoor unit]
[Parts assembly drawing]
1
1
2
2
7
8
33
9
4
0
5
6
Pass the M-NET transmission line (shielded cable)
through the terminal block window and the cable bush
under the terminal block of the electrical parts box.
Connect the lead wire 7that was connected to CN5 on
M-NET board 1in step to CNMNT on the outdoor
Board.
Connect the lead wire 8that was connected to CND on
M-NET board 1in step to CNVMNT on the outdoor
Board.
Engage the 2 tabs of the plate 2with the catches on the
back of the terminal block plate of the electrical parts box.
Use the 2 screws 3to secure the plate 2that was
attached in step to the terminal block plate of the
electrical parts box.
Use the 3 screws removed in step to install the
electrical parts box to the outdoor unit.
Note: Engage the notch on the terminal block plate of
the electrical parts box with the tab of the outdoor
unit plate when installing the electrical parts box to
the outdoor unit.
Connect all the lead wires removed in step to the
previous position on the outdoor Board.
Note: Take great care that no lead wire is caught in
anything when installing panels.
Use the terminal screw 5to secure the terminal block 4
to the plate 2.
Note: The terminal block 4has a boss for positioning.
Align the boss with the positioning hole on the
plate 2.
Paste label 6on the side of the terminal block 4in the
direction shown in the figure.
Connect the lead wire 7to CN5 on M-NET board 1.
Connect the lead wire 8to CND on M-NET board 1.
Use the lead wire 9to connect CN2M on M-NET board
1with terminals A and B of the terminal block 4.
There is no polarity.
Note: Connect the wire firmly, making sure that the
screws on terminal block are not loose.
Fix the lead wire 9with the clamp on the plate 2.
*1: Fix it so that thick portion of the black tube of the
lead wire 9is located to the right of the clamp.
*2: If required, connect the shield of M-NET
transmission line to the plate 2using the ground
wire and screw 0.
Refer to “(1) Ground wire connection” on page 2.
[Procedure of installation to the outdoor unit]
[Procedure of parts assembly]
Remove all the lead wires connected to the outdoor
Board.
Remove the 3 screws (indicated by arrows) that secure
the electrical parts box, and lift the electrical parts box off
the outdoor unit.